What is a ganglion cyst?

A:

Quick Answer

According to Mayo Clinic, a ganglion cyst is a noncancerous lump that typically forms along the tendons or joints of wrists and hands and may also develop on ankles or feet. These cysts tend to be oval-shaped or round and have a gel-like liquid filling.

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According to Mayo Clinic, ganglion cysts can range from being about the size of a pea to around an inch in diameter. The cysts may cause pain if they put pressure on a nerve. In the event that a ganglion cyst becomes troublesome, a doctor may recommend draining the cyst with a needle. Another available option for treating a ganglion cysts is surgical removal. However, treatment is not necessary in the absence of symptoms. The exact cause of these cysts is uncertain.